135606673 has 2 divisors, whose sum is σ = 135606674. Its totient is φ = 135606672.

The previous prime is 135606619. The next prime is 135606707. The reversal of 135606673 is 376606531.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 108743184 + 26863489 = 10428^2 + 5183^2 .

It is a cyclic number.

It is not a de Polignac number, because 135606673 - 2¹³ = 135598481 is a prime.

It is not a weakly prime, because it can be changed into another prime (135606973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67803336 + 67803337.

It is an arithmetic number, because the mean of its divisors is an integer number (67803337).

Almost surely, 2^135606673 is an apocalyptic number.

It is an amenable number.

135606673 is a deficient number, since it is larger than the sum of its proper divisors (1).

135606673 is an equidigital number, since it uses as much as digits as its factorization.

135606673 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 68040, while the sum is 37.

The square root of 135606673 is about 11645.0278230668. The cubic root of 135606673 is about 513.7600774323.

The spelling of 135606673 in words is "one hundred thirty-five million, six hundred six thousand, six hundred seventy-three".